Optical sensor allows photometric titrations to be automated, Metrohm claims.
Metrohm UK has announced the release of its Optrode optical sensor which is designed to automate the photometric titration process.
Many titrations are still often performed manually because regulations require a titration to continue until the colour changes - meaning the endpoint must not be indicated by a pH electrode or a metal electrode.
Now, however, Metrohm’s Optrode sensor overcomes this issue.
The Optrode features eight different wavelengths for a wide measuring range, and is 100% solvent resistant due to its glass shaft.
Meanwhile, the Optrode can be used on both new and existing Metrohm titration systems as well as on titrators from other manufacturers.
Applications include:
- Photometric titrations in accordance with USP and Ph. Eur. (non-aqueous)
- Determination of carboxyl end groups (non-aqueous)
- TAN/TBN in accordance with ASTM D974 (non-aqueous)
- Chloride in silicone products (non-aqueous)
- Sulphate determination
- Fe, Al, Ca in cement
- Water hardness (total hardness and Ca/Mg)
